Fung 1993

Fung, I., 1993: Models of oceanic and terrestrial sinks of anthropogenic CO₂: A review of the contemporary carbon cycle. In Biogeochemistry of Global Change: Radiatively Active Trace Gases. R. Oremland, Ed. Chapman & Hall, pp. 166-189.

The atmospheric increase of carbon dioxide in the 1980s represents only ~57% of the release from fossil-fuel combustion. A balanced budget thus requires the CO₂ sinks to remove 2.5-5.0 GtC/yr, an amount equal to 43% of the fossil fuel plus 100% of the deforestation inputs. Oceanic uptake estimated directly from data on air-sea differences in the partial pressures of CO₂ is ~1.6 GtC/yr; uncertainties in this estimate due to inadequate sampling both in time and space are difficult to quantify. Ocean models yield oceanic sink strengths ~30% of the fossil-fuel inputs alone, implying a significant net terrestrial sink. Interhemispheric gradient of CO₂ in the atmosphere points to a Northern Hemisphere mid-latitudes sink, whereas deconvolution of the historical records suggests that the sink has been operative for the past 50 years. Although isotopic data can provide potentially powerful constraints on the partitioning of the CO₂ sink between land and sea, the conclusions are highly dependent on the del13C value of the respired CO₂. Understanding ecosystem dynamics with turnover times of 10-100 years is, thus, tantamount.

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Fung, I.: Models of oceanic and terrestrial sinks of anthropogenic CO₂: A review of the contemporary carbon cycle, in: Biogeochemistry of Global Change: Radiatively Active Trace Gases, edited by Oremland, R., 166-189, Chapman & Hall, New York, N.Y., 1993.

Fung, I. (1993), Models of oceanic and terrestrial sinks of anthropogenic CO₂: A review of the contemporary carbon cycle, in Biogeochemistry of Global Change: Radiatively Active Trace Gases, edited by R. Oremland, pp. 166-189, Chapman & Hall, New York, N.Y.

Fung, I., 1993: Models of oceanic and terrestrial sinks of anthropogenic CO₂: A review of the contemporary carbon cycle. In Biogeochemistry of Global Change: Radiatively Active Trace Gases. R. Oremland, Ed. Chapman & Hall, pp. 166-189.

Fung, I. 1993, in Biogeochemistry of Global Change: Radiatively Active Trace Gases, ed. Oremland, R., 166 (New York, N.Y.: Chapman & Hall).

Fung I. Models of oceanic and terrestrial sinks of anthropogenic CO₂: A review of the contemporary carbon cycle. In: Oremland R, editor. Biogeochemistry of Global Change: Radiatively Active Trace Gases, pp. 166-189. New York, N.Y.: Chapman & Hall; 1993.

I. Fung, In Biogeochemistry of Global Change: Radiatively Active Trace Gases, R. Oremland, Ed. (Chapman & Hall, New York, N.Y., 1993), pp. 166-189.